From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 90433C433EF for ; Sat, 4 Dec 2021 09:48:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1384531AbhLDJvl (ORCPT ); Sat, 4 Dec 2021 04:51:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56764 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1384527AbhLDJvl (ORCPT ); Sat, 4 Dec 2021 04:51:41 -0500 Received: from mail-oi1-x230.google.com (mail-oi1-x230.google.com [IPv6:2607:f8b0:4864:20::230]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 027CBC0611F7 for ; Sat, 4 Dec 2021 01:48:15 -0800 (PST) Received: by mail-oi1-x230.google.com with SMTP id m6so10965202oim.2 for ; Sat, 04 Dec 2021 01:48:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=bOAkXZDiyTsKYfGEC23YRLp6n8iiidS662e1ynxgsxA=; b=WNErxpaJ0vt9GBbdqCxCm7NrYJDMBAl8LPN1SiLwt3loHe/k206b12pHYF3Yx/xmEg pLJcdL9Xch8oLQXlTwN35R2wEE0Ko/K28/LeEyS3cMg4VdHEsYEEn5PCot9EdNmYdc55 C4cSFD9Qqdj6zuZXFkxqQsivgdk+Z2YRI650E53U5DqSv5aCklUh6UCyR0WA7TsD8GJi eQ5M9p4tMrbWcVZXmYdROE7HOTUWc+v6YtF2HwXKraubXnyR2Mt3D+fxwXwWy3hNe1T1 vinQjMCt9bkRCl3OpwbZctWQZG1cVCj20qb4CMg37elx1ZlQ3uWo+cQXAyDkFZSG1+3D Fhrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=bOAkXZDiyTsKYfGEC23YRLp6n8iiidS662e1ynxgsxA=; b=N6q13Bvc2kGwi/p3kAkN7mQx7fHpHinY+UZ2VjCcjk0UJul+iaEmMab5ifUtEeR1KH w8r8ibuVyw34yB3OlRJk7QFjv0UI6q8lMVXP3hUBjxxJwz4pVSM8JQ2Tt25cYkq8X3R9 N1KRQ7/xUviiN0PnkJpgbjadc9raP1aLNM4zUhFuYjqlx9hUITFpX0WtYAF0t4W106zp t7cayQP9wvhVP8W2HUx0bgCm/i74N9wtLrjQ/EnTewCTGIZJZWu8JnpB3/nFptT0HgYA ns0ziRsG7DXQzDR6NIxD3KCNioGC9DPfM4KY5c+JIv5IS5HQAELqVRTtBxSxD0Xwo2ao orWA== X-Gm-Message-State: AOAM532nubvI5N+/a7ZqOVHHIO4liUf+5LYGaUfVCYUg/dCkpDb4jMhp QuHa8zQBr9yXEpoXScuAG95f9ms3/prUErNIxNemKNoy6FXJJg== X-Google-Smtp-Source: ABdhPJxKiMFgxJ5zcd3V9wHDP+cMEBZxSFcKc2VU3eqKSIdvXpYm+andMC88m4jlKzdjIBB7Rx1ycGPNnDJpKj4FBu8= X-Received: by 2002:aca:b843:: with SMTP id i64mr14560842oif.109.1638611294801; Sat, 04 Dec 2021 01:48:14 -0800 (PST) MIME-Version: 1.0 References: <0000000000000a389a05ac5a9864@google.com> <00000000000091c45705d1b3d7ea@google.com> In-Reply-To: <00000000000091c45705d1b3d7ea@google.com> From: Dmitry Vyukov Date: Sat, 4 Dec 2021 10:48:03 +0100 Message-ID: Subject: Re: [syzbot] KASAN: null-ptr-deref Write in l2cap_chan_put To: syzbot Cc: anant.thazhemadam@gmail.com, bobo.shaobowang@huawei.com, cobranza@ingcoecuador.com, davem@davemloft.net, ducheng2@gmail.com, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, luiz.von.dentz@intel.com, marcel@holtmann.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org On Fri, 26 Nov 2021 at 17:47, syzbot wrote: > > syzbot suspects this issue was fixed by commit: > > commit 1bff51ea59a9afb67d2dd78518ab0582a54a472c > Author: Wang ShaoBo > Date: Wed Sep 1 00:35:37 2021 +0000 > > Bluetooth: fix use-after-free error in lock_sock_nested() > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=141cfa45b00000 > start commit: c70672d8d316 Merge tag 's390-5.9-5' of git://git.kernel.or.. > git tree: upstream > kernel config: https://syzkaller.appspot.com/x/.config?x=bd46548257448703 > dashboard link: https://syzkaller.appspot.com/bug?extid=452e9465a3b2817fa4c2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=152f31f9900000 > > If the result looks correct, please mark the issue as fixed by replying with: > > #syz fix: Bluetooth: fix use-after-free error in lock_sock_nested() > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection Looks reasonable: #syz fix: Bluetooth: fix use-after-free error in lock_sock_nested()